murray,
I just purchased a HEI for my 235. It is,
of course a GM unit. I too wondered if the HUGE
cap would fit in the stock location. Yippee, it does. This distributor will not just drop in though, machining is necessary. I don't think the 216 is dimensionally that much different from the 235 so I think a GM HEI would fit. You could always do a Pertronix unit that fits in the stock distributor, then you have no extra work at all. With all the modifications you have made, it obviously is no longer stock!! Why not upgrade to a modern 6 cylinder.
Stuart.
